Chemistry - Biomolecules
Exam Duration: 60 Mins Total Questions : 30
Consider the following statements
Enzymes and proteins can be correlated with each other in the following ways.
1. All proteins are enzyme.
2. All enzymes are protein.
3. All enzymes are not protein
4. All proteins are not enzyme.
Which of the statements given above are correct?
- (a)
1 and 3
- (b)
2 and 4
- (c)
1, 2 and 3
- (d)
2, 3 and 4
The function of enzymes in the living system is to
- (a)
transport oxygen
- (b)
provide inmunity
- (c)
Catalyse bio-chemical reactions
- (d)
provide energy
Consider the following statements
1. The sweetest of all sugar is fructose.
2. The disaccharide present in milk is lactose.
3. Starch is a polymer of glucose.
Which of the statements above is/are correct?
- (a)
Only 1
- (b)
Only 2
- (c)
1 and 2
- (d)
1, 2 and 3
consider the following
1. Nucleic acids
2. Carbohydrates
3. Proteins
A virus is made up of which of the above?
- (a)
1 and 2
- (b)
2 and 3
- (c)
1 and 3
- (d)
1, 2 and 3
Enzymes
- (a)
accelerate bio-chemical reactions
- (b)
consist of amino acids
- (c)
have optimum activity at body temperature
- (d)
have all these properties
Consider the following statements
1. On hydrolysis proteins give amino acids.
2. The coagulation of protein is called denaturing.
3. A protein is best described as a polypeptide.
Which of the statements give above is/are true?
- (a)
Only 1
- (b)
Only 2
- (c)
2 and 3
- (d)
1, 2 and 3
Which of the following has magnesium?
- (a)
Carbonic anhydrase
- (b)
Vitamin-B12
- (c)
Chlorophyll
- (d)
Haemocyanin
which of the following is an example of conjugated protein?
- (a)
Albumin
- (b)
Globulin
- (c)
Glutelin
- (d)
Glycoprotein
Which one of the following statements regarding starch and cellulose is not correct?
- (a)
Both of them are of plant origin
- (b)
Both of them are polymers
- (c)
Both of them give colour with iodine
- (d)
Both of them are made up of glucose molecules
Which one of the following vitamins is essential for coagulation of blood?
- (a)
Vitamin-A
- (b)
Vitamin-B 12
- (c)
Vitamin-K
- (d)
Vitamin-D
Assertion (A) Blood sugar and grapes sugar are respectively glucose.
Reason (R) Monosaccharides are the simplest carbohydrates and also known as simple sugars.
- (a)
Both A and R are true and R is the correct explanation of A.
- (b)
Both A and R are true, but R is the correct explanation of A.
- (c)
A is true but Ris false.
- (d)
A is false, but R is true.
Assertion (A) In CO poisoning, since much of the haemoglobin is tied up with CO, O, transport to the tissues is inhibited.
Reason (R) Normal haemoglobin found in red blood cells has a glutamic acid residue.
- (a)
Both A and R are true and R is the correct explanation of A.
- (b)
Both A and R are true, but R is not the correct explanation of A.
- (c)
A is true, but R is false
- (d)
A is false, but R is true
Which one of the carbohydrates is used for silvering of mirror?
- (a)
Sucrose
- (b)
Maltose
- (c)
Glucose
- (d)
Fructose
which one among the following is the natural polymer?
- (a)
Nylon
- (b)
Teflon
- (c)
PVC
- (d)
Cellulose
Which one of the enzymes is used to digest gelatine in the process of recovering silver from the photographic film?
- (a)
Amylase
- (b)
Pepsin
- (c)
Lipase
- (d)
None of these
Match Column I with Column II
Column I (Protein) |
Column II (Property) |
A. Structural protein | 1. Haemoglobin |
B. Transport proteins | 2. Collagen and keratin |
C. Protective proteins | 3. Actin and myosin |
D. Contractile proteins | 4. Antibodies |
- (a)
A B C D 2 1 4 3 - (b)
A B C D 1 4 3 2 - (c)
A B C D 4 3 2 1 - (d)
A B C D 3 2 1 4
Which of the following Proteins has structural as well as enzymatic property?
- (a)
Collagen
- (b)
Actin
- (c)
Dynein
- (d)
Nexin
Which of the fallowing have coiled helical structure?
- (a)
Proteins
- (b)
Lipids
- (c)
carbohydrates
- (d)
Vitamins
Match column I with Column II
Column I | Column II |
A. Polysaccharide | 1. Glucose |
B. Trisaccharide | 2. Sucrose |
C. Disaccharide | 3. raffinose |
D. Monosaccharide | 4. Cellulose |
- (a)
A B C D 1 4 3 2 - (b)
A B C D 4 3 2 1 - (c)
A B C D 2 1 4 3 - (d)
A B C D 3 2 1 4
Consider the following statements
1. The "'Proteomic" was first coined by Mare Wilkins in 1997.
2. The word "Proteome' is a blend of protein and genome.
3. Proteomic is the large scale study of proteins, particularly their structures and functions.
Which of the statements given above are correct?
- (a)
1, 2 and 3
- (b)
1 and 2
- (c)
2 and 3
- (d)
1 and 3
The metal present in vitamin B12 is
- (a)
Iron
- (b)
Manganese
- (c)
Cobalt
- (d)
Mangnesium
Consider the following statements
1. Waxes have long chain fatty acids tightly packed and linked to long chain alcohol or carbon rings.
2. Lipoproteins are clusters of proteins and lipids all tangled up together.
3. Lipids are energy storage molecules and thermal insulator.
Which of the statements above are correct?
- (a)
1, 2 and 3
- (b)
1 and 2
- (c)
2 and 3
- (d)
1 and 3
Consider the following statements
1. Neutral fats such as butter and vegetable oils are mostly triglycerides.
2. Triose sugars are simplest sugars and not found in nature. These are produced as intermediate in metabolic pathway like glycolysis.
Which of the statements given above is/are correct?
- (a)
Only 1
- (b)
Only 2
- (c)
Both 1 and 2
- (d)
None of these
Lactose on hydrolysis gives
- (a)
glucose
- (b)
fructose
- (c)
fructose + glucose
- (d)
glucose + galactose
A metal which can form a complex with insulin is
- (a)
copper
- (b)
iron
- (c)
Zinc
- (d)
Cobalt
The reagent which may be used to distinguish between cane sugar and glucose solution is
- (a)
Molisch's reagent
- (b)
Iodine solution
- (c)
Baeyer's reagent
- (d)
Fehling solution
Chemical name of Vitamin-A is
- (a)
thiamine
- (b)
axerophthol
- (c)
ascorbic acid
- (d)
nicotinamide
Assertion (A) Fatty acids should be a part of balanced human diet.
Reason (R) The cells of the human body can not synthesize any fatty acids.
- (a)
Both A and R are true and R is the correct explanation of A.
- (b)
Both A and R are true but, Ris not the correct explanation of A.
- (c)
A is true, but Ris false
- (d)
A is false, but Ris true
Consider the following statements
1. Lipids are generally water insoluble.
2. Lipids could be simple fatty acids.
3. Each protein is a polymer of amino acids.
4. Dietary proteins are the source of essential amino acids.
Which of the statements given above are correct?
- (a)
1 and 2
- (b)
2 and 3
- (c)
1, 2 and 3
- (d)
1, 2, 3 and 4
Match Column I with Column II
Column I (Protein) |
Column II (Functions) |
A. Collagen | 1. Intercellular ground substance |
B. Insulin | 2. Hormone |
C. Trypsin | 3. Enzyme |
D. Antibody | 4. Fights infectious agents |
- (a)
A B C D 1 2 3 4 - (b)
A B C D 2 3 4 1 - (c)
A B C D 3 4 1 2 - (d)
A B C D 4 1 2 3